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Selenophosphoric acid

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Identification
Molecular formula
H3PO3Se
CAS number
7783-81-5
IUPAC name
trihydroxy(selenoxo)-lambda5-phosphane
State
State

At room temperature, selenophosphoric acid is generally found as a solid. However, it can be dissolved in water to produce a solution, reflecting its behavior as an oxyacid of phosphorus and selenium.

Melting point (Celsius)
73.00
Melting point (Kelvin)
346.15
Boiling point (Celsius)
300.00
Boiling point (Kelvin)
573.15
General information
Molecular weight
146.94g/mol
Molar mass
146.9420g/mol
Density
2.4400g/cm3
Appearence

Selenophosphoric acid typically appears as a colorless to pale yellow solid or liquid, depending on its state of hydration and concentration. It may also form crystalline structures. It's reactive and should be handled with care in a proper laboratory environment.

Comment on solubility

Solubility of Trihydroxy(selenoxo)-lambda5-phosphane (H3PO3Se)

The solubility of trihydroxy(selenoxo)-lambda5-phosphane, also known as H3PO3Se, can be quite intriguing. This compound exhibits unique properties due to the presence of selenium in its structure. Understanding its solubility can provide insights into its behavior in various environments.

Key Points about Solubility:

  • In water: H3PO3Se is generally expected to be soluble due to its hydrophilic hydroxyl groups.
  • In organic solvents: The solubility may vary based on the polarity of the solvent; less polar solvents may show limited solubility compared to polar ones.
  • pH dependence: The solubility can be influenced by the pH of the solution, potentially increasing in acidic conditions.
  • Complex formation: H3PO3Se may engage in complexation reactions, which could either enhance or hinder solubility depending on the ions present in the solution.

As a rule of thumb, the more accessible the hydroxyl groups are, the greater the potential for solubility. Therefore, this compound's unique chemical structure indicates that although it may have considerable solubility in certain conditions, specific factors such as temperature and the presence of ionic species can significantly alter the overall solubility profile.

Interesting facts

Interesting Facts about Trihydroxy(selenoxo)-lambda5-phosphane

Trihydroxy(selenoxo)-lambda5-phosphane, often recognized by its chemical formula H3PO3Se, presents a fascinating blend of phosphorus, oxygen, and selenium. Here are some striking aspects of this compound:

  • Unique Bonding: The presence of selenium as a substituent in the phosphane structure introduces unique chemical behaviors that can alter reactivity when compared to traditional phosphates.
  • Potential Applications: This compound holds promise in various fields, including agriculture and materials science, due to its potential as a nutrient source and in the development of novel materials.
  • Research Interest: The study of selenium in phosphorus chemistry is a niche yet expanding area of research, where scientists are intrigued by the effects of selenium on the mechanistic pathways of various chemical reactions.
  • Environmental Significance: Understanding compounds like trihydroxy(selenoxo)-lambda5-phosphane is crucial as they might play roles in biogeochemical cycles and affect ecological systems.
  • Health Implications: Selenium is an essential trace element in biological systems, and its interaction with phosphorous compounds opens avenues for investigating its nutritional roles and benefits.

In summary, trihydroxy(selenoxo)-lambda5-phosphane exemplifies the intricate interplay between elements and their potential contributions to both industrial applications and biological systems. As research progresses, this compound may lead to groundbreaking discoveries in chemistry and beyond.

Synonyms
Phosphoroselenoic acid
selenophosphoric acid
trihydroxidoselenidophosphorus
[P(OH)3Se]
trihydroxy(selanylidene)-lambda5-phosphane
25758-66-1
Monoselenophosphoric acid
CHEBI:29269